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1380987982080 = 28335726921221
BaseRepresentation
bin10100000110001001010…
…011000101000100000000
311220000120102112012212000
4110012021103011010000
5140111230410411310
62534230033104000
7201526112111250
oct24061123050400
94800512465760
101380987982080
11492745793893
121a378a0b8000
13a02c3b1c225
144aba9623960
1525dc8eee4c0
hex141894c5100

1380987982080 has 576 divisors, whose sum is σ = 5621758732800. Its totient is φ = 314466140160.

The previous prime is 1380987982079. The next prime is 1380987982097. The reversal of 1380987982080 is 802897890831.

1380987982080 is a `hidden beast` number, since 1 + 380 + 98 + 7 + 98 + 2 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×13809879820802 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1380987981999 and 1380987982017.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65065870 + ... + 65087090.

It is an arithmetic number, because the mean of its divisors is an integer number (9759997800).

Almost surely, 21380987982080 is an apocalyptic number.

1380987982080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380987982080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2810879366400).

1380987982080 is an abundant number, since it is smaller than the sum of its proper divisors (4240770750720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1380987982080 is a wasteful number, since it uses less digits than its factorization.

1380987982080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21527 (or 21507 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 1380987982080 in words is "one trillion, three hundred eighty billion, nine hundred eighty-seven million, nine hundred eighty-two thousand, eighty".